Machine for cutting the edges of books.



' V PATENTED 001*. 6,1903.

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MACHINE FOR CUTTING THEIEDGES'OF' BOOKS.

APPLICATION FILED JULY 16, 1900.

6 SHEETSSHEET 1.

11b MODEL.

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PATBNTED OCT. 6, 1903.

E GROSSE MACHINE FOR GUT-TING THE EDGES OF BOOKS.-

A?PLIUATIQH FILED JULY 16 1900.

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PATENTED OGT. '6, 1903 E. GROSSE. j MACHINE FOR CUTTING THE EDGE-S OF BOOKS.

APPLICATION-FILED JULY 16, 1900.

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No. 741,002. PATENTED OCT. 6, 1903;

1 I E. GROSSE.

MACHINE FOR CUTTING THE EDGES OF BOOKS.

APPLICATION FILED JULY 1'6, 1909. no MODEL. a sums-gunm- 4.

PATENTED OCT; 6, 1903.

E. GROSSE. MAGHINE FOR CUTTING THE EDGES OF BOOKS.

APPLICATION FILED JULY 16, 19001 6 SHEETS-SHEET 5.

NO MODEL.

PATENTED OGT. 6, 1903.

EIGRQSSE. MACHINE FOR CUTTING THE EDGES OF BOOKS.

A PPLIOATION FILED JULY 16, 1900. e SHEETS-SHEET a.

N0 MODEL.

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Patented October 6, 1903.

EDUARD GROSSE, OF LE IPZlG-VOLKMARSDORF, GERMANY.

MACHINE FOR CUTTING THVE EDGES or BOOKS.

SPECIFICATION forming part of Letters Patent No. 741,002, dated October 6, 1903.

Original app'ication filed February 21, 18%| Serial No. 706,393. Divided and this application filed July 16, 1900. Serial 1510.23,?93. (No modeL To all whom it may concern:

Be it known that I, EDUARD GROSsE, a subject of the King of Saxony, residing at/Leipzig-Volkmarsdorf, in the Kingdom of Saxony following is a specification, being a divisional part of the application, Serial No. 706,893, filed February 21, 1899.

This invention relates to a rotary machine forcutting the edges of books provided with mechanism for feeding the books and a device for holding the latter under pressure while being out.

In the accompanying drawings, Figure 1 is a front elevation of the machine. Fig. 2 is a transverse section of the same. Fig. 3 is a front view of the pressing mechanism, on a larger scale. the same. Figs. 5and 6 represent detail plans, partly in section, on the line 1 2, Fig. 4., showing different positions of the parts. Fig. 7 is a front elevation showing the combination of the coloring device with the cutting device.

. Fig. 8 is a transverse section of the same.

Fig. 9 is a diagrammatic elevation of the gearing shown in Figs. 1 and 2, pitch-circles being indicated in dotted lines and real lines in full.

The rotary feeding device consists of a center shaft or hub A and of two hollow re ceivers A and. A situated opposite to each other, which rotate intermittently through one hundred and eighty degrees in the direction of the arrow shown in Fig. 2. During the rest of the receivers-1;. 6., after each half a rotationa book is fedinto the receiver A opposite to the receiver A and the cutting mechanism, and the book in the receiver A is out by the knife of the cutting mechanism, as hereinafter described. When the edge of the book in the receiver A has been cut, the rotary feeding device makes half a revolution in the direction of the arrow, and the book the edge of which has been cut is thus carried to the place where the receiver A was situated before, and the second book is carried to the place where the receiver A was before and where itis then cut.

Fig. 4 is a transverse section of The machine first driven by a pulley i2,

which is disengaged and engaged through a friction coupling by means of a lever in, connecting-rod w, and treadle 10 (See Fig. l.) A .fly-wheel a; is situated at the side of the pulley '22. On the shaft of the clutch-pulley n is a pinion a, engaging with a spur-wheel b, on the shaft of which is keyed a pinion c, gearing with the spur-wheel d. Segment spur-wheels e andf are fixed on the same shaft as the spur-Wheel d, the wheel 6 engaging with a spur-wheel h and the wheel f with a spurwheel g. The wheels e andfbeing provided with teeth only on one-half of their periphcries, as shown in the diagrammatic elevation, Fig. 9, rotate the spur-wheels h and g, respectively, only during one-half of their revolutions, the rotation being then discontinued, so that the wheels 71. and g and the mechanism operated thereby come to rest. The arrangement is so designed that the half of the wheel 6 which has teeth commences to engage with the wheel h at the moment at which the teeth of the wheel f cease to engage with the wheel g. Therefore the segment-wheels e and f engage with their respective spur-wheels alternately and the motion and rest of the mechanism operated by them alternately in a corresponding manner.

The rotary feeding device is operated by means of the wheel g, which is half as large as the driving-wheel f and drives a-large spur-wheel Z, situated on the shaft A of the rotary feeding device and which is twice as large as the spur-wheel g. Consequently. the spur-wheel Z makes only half a revolution, while the spur-wheel g makes a whole revolution, during the engagement with the toothed segment of the driving spur-wheel f, so that in each complete revolution of the wheel f the wheell and the feeding device rotating with it make half a revolution during one half of the revolution of the wheelf and are at rest during the other half, when the toothed segment of the wheel f is not in engagement. In the same manner the other wheel 6, provided with teeth on only one-half of its circircumference, effects the alternating operation of the pressing and cutting mechanisms. The segment-wheel e commences to rotate the spur-wheel h, which is equal in circumference with the wheel 6, at"the same moment when the rotary feeding device comes to rest.

Keyed on the shaft of the wheel h is a bevel-wheel i, which operates a bevel-wheel 7c. The latter carries a crank-disk 70 which effects the ascent and decent of the beam B, carrying a knife 13*. (See Figs. 1, 2, 7, and 8.) The bevel-wheel 7c is only half as large as the bevel-wheel 91, which latter makes only half a revolution during the engagement of the wheel h with the toothed segment of the wheel 6 and in a corresponding period to that of the wheel 70, so that the crank-disk k makes a whole revolution, drawing the knife B down and pushing it up again during half a revolution of the wheel 7;, and then rests while the toothed segment of the wheel 0 is not in gear.

The foregoing gives a general view of the invention. The following describes the details shown in Figs. 3 to S: The rotary feeding device consists of a central shaft or hub A. and two hollow receivers A and A situated on opposite sides of the shaft, with which holding and pressing devices are combined. Each receiver is box-shaped. To insure the correct insertion of the books, each receiver is provided with a sliding anglepiece G, Fig. 2, against which the back of the book is placed. The position of the sliding angle-piece G is regulated, as in known papercutting machines, by a screw G, which engages with a screw-thread in the projecting.

angle-piece G and moves the latter forward or backward in the receiver, according to the rotation of the screw.

The holding device consists of an abutment H and a movable press beam II, pressed against the books by flat springs J, and is fixed on the receiver, so that it can be carried through the machine. The pressing mechanism P supplies through the beam H the additional pressure upon the book which is necessary in cutting.

To allow of the removal of the book at A and the insertion of another book, a gripper J is provided, pivoted at J in the stationary frame, connected at J to a draw-bar J,which is connected with a treadle-lever J When the latter is depressed, the before-described gripping mechanism occupies its lowest position, as shown in Figs. 1 and 2, the gripper J reaching over a projection 11 on the pressing-beam II and pulling the latter downward, so that the book can be removed and another inserted. \Vhen the treadle J is allowed to ascend, the gripper J moves upward and away wheel 70, on which is situated a crank-disk 76, Figs. 5and 7. The crank-disk k is connected by a pin with a draw-bar B, Figs. 1 and 7, which is attached at B to a beam B, carrying a knife 13. The knife-beam B slides up and down in the frame and is guided by rollerpins B Fig. 1, in oblique slots B in the knifebeam B. The rotation of the crank-disk 70 transmits by the connecting-rod B reciprocating motion, which causes the alternating ascent and descent of the knife-beam B and the knife B In consequence of the oblique slots B the movement of the knife B is diagonal to insure a better cut. The knife B" is arranged obliquely to the cutting-table and cuts against a lower knife N situated on the cutting-support N, Fig. 4.

During the cutting operation it is necessary not only to apply additional pressure on the books by the pressing device P, but also to give a support to the receiver A which is below the cutting device, to enable it to resist the pressure of the knife acting from above. The mechanism for this purpose is as follows, (see Figs. 3 and 4:) A crank m, Figs. 2 and 4, on the shaft of the bevel-wheel t'effects the operation of the pressing mechanism P and the cutting-support N. The crank m is connected by a connecting-rod n with a crank 0, which is fixed to the shaft 19. As the crank 0 is longer than the diameter of the circle described by the crank m, the rotary motion of the latter is transmitted to the crank 0 as an oscillating motion. The shaftp partakes of this motion, and the cranks q and r, fixed on the shaftp, oscillate also u p and down in approximately a semicircle. The crank r operates the cutting-support N and the crank q the pressing mechanism P. The cuttingsupport consists of the toggle-lever N and the beam N, guided in the frame and carrying a lower knife N of steel. The toggle-lever N is connected by a link 7' with the crank 1". When the crank r, operated by the crank in, oscillates up and down, this oscillating motion is transmitted to the toggle-lever N, which is alternately bent and straightened. The guided support-beam N by this moveinent is slid up and down, descending when the toggle-lever N is bent and ascending.

when the latter is straightened. During its ascent it gives a free passage to the rotary feeding device, and when in its upper position it serves as a rest for the edge of the rotary feeding device in which the book is clamped.

The extra pressure for holding the book while cutting is effected by the mechanism P, which consists of a pressing-beam P, Figs. 3 and 4, guided up and down in the frame and raised and lowered by the rods 3, s, and s to a Variable extent, governed by the pivoted pressing-blocks P Figs. 3, 4, 5, and 6, which are adjustable to press automatically at all levels or thicknesses of books and controlled by the lever mechanism 25 to t which eifects the automatic adjustment in pressing.

Figs. 3 to 6-show the pressing mechanismtaneously the beveled'edges s of the rods 5 (see Fig. 3) push inward the spring-pressed elastic racks to, which engage with the pinions P and as the latter are fixed to the pressing -block 1? these receive a turning motion and occupy a position which allows of the passage of the pressing-beam P during its ascent.

The pressing-blocks P are pivoted in a frame 15, situated behind the pressing-beam P, so that the latter can travel up and down in front of the frame twhen the pressing-blocks 2 are turned out of the way. The frame 1, is moved up and down by lever mechanism 6 to t say, for example, to the extent of three centimeters. This up-and-down movement is effected by the eccentric or cam K, Figs. 1 and 2, which is fixed to the bevel-wheel 1a. A connecting-rod t runs by means of a roller on the eccentric K. The connecting-rod t is connected to the lever 7?, Figs. 1 and 3. The frame tis suspended from the lever 15 at 25 An adjustable fulcrum-rod i is joined to the lever t To'the rod t is joined a lever t ,.fulcrumed at t and carrying a counterbalanceweight 2?, which effects the pressing by lever mechanism.

The pressing movement effected by the parts 15 to t is only equivalent to a space of three centimeters; but the books to be inserted into the rotary feeding device may be moresay nine centimeters thick, so that a rise and fall of the pressing mechanism equal to nine centimeters is required. To equalize these difierences of thickness-41. e., to obtain the required additional space of six centimeters in this casethe two blocks P are inserted as filling-pieces between the upper part of the frame 25 and the pressing-beam P.

The pressing-blocks P are approximately semicylindrical, as indicated in the view thereof in Figs. 5 and 6, being on one side semicircular and on the other side almost straight, with a pin in the center to serve as a pivot. Fig. 3 shows the pressing-blocks, with the frame 25, in rear elevation, and Fig. at the frame in section and blocks in side view. Figs. 5 and 6 show the pressing-blocks P and the upper face of the pressing-beam P, with its projections P in plan. The ends or pivots of the pressing-blocks P turn in bearings on the frame t and occupy at one time positions as shown in plan in Fig. 5 and at another time positions as shown in plan in Fig. 6. Each pressing-block has three steps, each step being three centimeters high-that is, exactly as high as the ascent and descent of the frame- If. The steps therefore fill exactly the space required to be filled for the pressing of books Another plan, Fig. 6,

less than six centimeters thick. When the steps I of the blocks P rest on the projectionsp of the pressing-beam P, books can be pressed of from six to nine centimeters thickness. When the following steps 11 rest on the projections P books from three to six centimeters thick may be pressed. When the steps Ill rest on the projection P books less than three centimeters thick can be pressed.

Figs. 3 and 4 show the pressing-blocks P in the position in which they press books up to three centimeters thick. The plan, Fig. 5, shows them in a position in which the steps I rest on the projection P so that books from six to nine centimeters thick may be pressed.

blocks entirely turned back from the pressing-beam-that is, in a position which allows of the complete ascent of the pressing-beam P. This movement of the pressing-blocks P is obtained by the spring-pressed racks 11., Figs. 1 and 3, which engage in pinions P The beveled ends 8 of the racks it, operated by the connecting-rod 3, turn the blocks P back behind the pressing-beam P, and they are returned again across the pressing-beam P by means of the spiral springs 11,, Figs. 1 and 3. When the rods 8, and with them the ressin -beam P, are ushed u ward their C 7 beveled ends :3 push the racks to, provided with rollers, inward and turn the pressingblocks P behind the pressing-beam P into the position shown in plan in Fig. 6. The pressing-beam P, so that said beam will pass the blocks P is moved upward by the connecting-rod s sufficiently high to allow of the free passage of the rotary feeding device.

In order to allow the blocks P to be turned back at the correct time, the connecting-rod '8 runs empty in its guides P on the pressingbeam P until the blocks 1? are turned back by the racks it behind the pressing-beam P. Then the projections 8X of the connectingrod 3 engage under the guides P and raise the pressing-beam. The springs s are provided to draw the pressing-beam P onto the pressing-beam H of the rotary feeding device at the descent of the connecting-rod 3. When the connecting-rods s have arrived in their lowest position and the racks u are freed from side pressure at the springs u press them outward and the steps of the blocks P are turned over the projections P of the pressing-beam P. as far as the thickness of the inserted. book allows. For instance, if a book of two centimeters thickness has been inserted then all three steps pass over the projections P, the space between the upper part tand the pressing-beam P has been filled, and the automatic pressing by the lever mechanism t to t commences.

.If a book of live centimeters thickness has been inserted, only two steps pass over the projections P of the pressing-beam. If a book of seven or eight centimeters thickness has been inserted, only the uppermost step shows the pressingtoo IIC

passes. In this manner books of any thickness are pressed by the blocks P and the mechanism relating thereto in combination with the lever and eccentric mechanism 75 to 23 In connection with my machine for cutting the edges of books I employ a coloring device for which no claim is herein made and which is arranged on the rear side of the receiverA', where the cutting mechanism is situated. This coloring device consists of a color-receptacle D, feed-rollers D D and printing-roller D, mounted in a movable frame D, jointed to rods B connected by pivot B" to a slide 13 traveling in vertical guides B" and rest ing by roller B on top of the knife-beam B. As the coloring device descends by gravity with the cutting movement of the knife guide-rollers D Fig. 7, on ends of the printing-roll D are pressed outward by springs D and pass around the guiding projection D in the direction indicated by the arrow in Fig. 8. Passing from I to II the printingroll is carried by gravity beneath the projection D, and then by the ascent of the knife-beam Bit is carried upward at III, so as to apply the color to the cut edge of the book.

The following is what I claim as new and desire to secure by Letters Patent:

1. In a machine for cutting the edges of books, the combination of the two receivers A A mounted on a common rotatable shaft A; gearing imparting a half-revolution thereto successively in one and the same direction, whereby the respective positions of the receivers are transposed at each movement; a guided cutting device B operating in conjunction with the successive receivers; automatic mechanism actuating the said cutting device while the receivers are at rest; and continuously-moving driving mechanism acting on the rotating mechanism and the cutter-actuating mechanism successively, substantially as described.

2. In a machine for cutting the edges of books, the combination of a feeding device intermittently rotated, in one and the same direction, having two book-receivers A and A moved from the receiving place to the cutting place aud vice versa, at each semirotation; a cutting device B acting in conjunction with the respective receivers in the second position; a holding device 4 4 on each receiver to retain the book therein; a pressing device P located behind the cutting device serving to clamp the successive books while being cut; and a movable support N N serving to sustain the successive receivers While the book is being cut, substantially as described.

3. In a machine for cutting the edges of books, the combination of a rotatable feeding device having two book-receptacles; mutilated gearing imparting intermittent periodic rotation to said feeding device through a semicircle at each movement; a guided cutting device, to which the books are successively presented by the intermittent rotation of the receivers; and actuating mechanism .for the cutting device, operating alternately with the rotary motion of the feeding device, so that the cutter operates while the feeders are at rest and vice versa.

4. In a machine for cutting the edges of books, the combination of'two receivers A and A for the reception successively of two books; a rotatable shaft A on which receivers are mounted; mutilated gearing imparting to said receivers periodic rotation in one direction through a semicircle at each movement; a holding device H, H, J, for retaining the books in the successive receivers; a guided cutting device B to which the books are successively carried; and a gripping device J, J J for releasing the books successively as they are carried to the first position, after cutting, substantially as described.

5. In a machine for cutting the edges of books, the combination of two receivers A A 'for the reception successively of two books; a common rotatable shaft A on which said receivers are mounted; mutilated gearing imparting to said receivers periodic rotation through a semicircle at each movement, whereby the books are carried successively from the place of insertion to the place of cutting; a retaining device H, H, J, for holding the hooks in the receivers; a guided cutting device B acting in conjunction with the receivers successively in their second position; and a pressing device P having ail-auto.- matic adjusting device P for clamping books of various thickness while being cut, substantially as described.

6. In a machine for cutting the edges of books, the combination of a feeding device having two receivers A and A and a holding device H, H J, for securing books therein; means for imparting periodic rotation to said feeding device intermittently in one direction through a semicircle at each movement, so as to carry successive books from the place of insertion to the place of cutting; a guided cutting device B acting in conjunction with the receivers A and A successively while in the second position; an automatically-adjustable pressing device P P clamping the successive books while being cut; a movable support N N, sustaining the successive book-receivers in the cutting operation; and a gripper J for releasing the books when returned to the original position after cutting, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two witnesses.

' EDUARD GROSSE.

WVitnesses:

RUDOLPH FRICKE, B. H. WARNER, Jr. 

